Paper-folding machine.



PATENTED OUT. 6, 11903.

G. W. scmocK. PAPER FOLDING MACHINE.

APPLICATIOK FILED OUT. 13. 1902.

3 SHEETS-SHEET 1.

N0 MODEL.

Hu l N. 740,593. PVATENTBD 0016,1903,

G. W. SGHOGK. PAPER FOLDING MACHINE.

APPLICATION FILED OCT. 13, 1902. v N0 MODEL. BSHBHTS-SHEET 2.

THE mums warms co. moraumou WASHINGTON. 11.x;

No. 740,593. PATENTED OCT. 6, 1903.

' G. w. SGH'OGK. v

PAPER FOLDING MACHINE.

. APPLICATION FILED OUT. 13. 1902.

N0 MODEL. 3 SHEETS-SHEET 3.

'UNITED STAT s Patented Octobrfi, i963.

PATENT OFFICE.-

- PAPER-FOLDING MACHINE.

SPECIFICATION forming part of Letters Patent Nb. 740,593, dated October6, 1903. Application filed OctoberlS, 1902, =Serial No. 127,199. (Nomodel.)

. Bend, in 'the county of St. Joseph and State of Indiana, have inventedcertain'new and useful Improvements in Paper-Folding Ma-v chines; and Ido hereby declare the following. to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it 'appertains to make and use the same. 4

My invention has relation to improvements in paper-folding-machines; andthe object is to provide a machine of simple construction and efficientin operation wherein the usuallyemployed tapes are dispensed with andthe paper is carried by improved gripping mechamsm. V I

Theinvention embodies reciprocable carriers, paper-grippers carriedthereby, means to open and close the grippers, and means for producing afold in a sheet of paper and for holding the sheet against lateraldisplacement or movement when being creased and folded, all as will behereinafter fully described, and the novelty particularly pointed outand distinctly claimed.

I have fully and clearly illustrated the invention in the annexeddrawings, forming apart of this specification, wherein similarreference-notations designate like parts appearing in the severalillustrations and reference being had thereto.

Figure 1 is a top plan view of a paper-folding machine wherein areembodied my improvements, the creasing-knife lever or arm being brokenaway at the middle portion to,

give full view of the carrier and grippers. Fig. 2 is a side elevationshowing the carriage and grippers at the limit of their'rear movementand in position to be carried forward. Fig. 3 is a view in sideelevation, partly in section, showing the grippers as moved forward withthe grippers in position to grip the paper and knife-lever at its upperposition.

Fig. 4. is a side View, partlyin section, showing the grippers movedback and released from the paper and the knife down and in engagementwith the paper. Figs. 5 and 6 are enlarged views of the tripping-dog foropening the grippers at their forward movement. Fig 7 is a detail sideview of the grippers closed and the upper position of the movable jaw orarm indicated in dotted lines. Fig. 8 is 'a top plan View of thegrippers, the movable jaw being broken away at the middle portion. Figs.9 and 10 are detail views showing the means for adjusting thefrontportion of'the movable jaw of the grippers.

It is premisedthat in the illustrationsl have shown only those elementsand parts which enter into a machine for making a single fold in a sheetof paper; but it is apparent that'if more than one fold is required aduplication of the disclosed constructions will be required.

, Making renewed reference to the drawings, 1 2 designate side rails ofa suitable supporting-frame whereon are mounted the elements of themechanism. At the front of the frame is'a feed-table 3, provided withclips 4, operating in a well-known manner. Adjacent to the front of theframe are journaled the paper-folding rollers 5 6, made adjustable toand from each other in a well-known manner. The housings or frames whichsupport the rollers are connected by'a plate or bar 7, to which aresecured the ends of a suitable number of paper-supporting arms or bars8, duplicates in construction and arranged on the same plane. To theside rails of the frame are secured parallel track-bars 9 10, on whichthe gripper-carriages are placed and operate.

These track-bars'are placed at such height as to bring thegripper-carriages at the proper plane to perform their movementsrelatively without detriment to the mechanism associated therewith.

ll 12 designatethe gripper-carriages, comprising suitable frames in theends of which are journaled wheels, as shown, which are adapted to runon the track-bars. The frames of the opposite carriages are connected bya rod 13, the ends of which project beyond the carriages,and havepivotally connected thereto. the ends of pitmen 14 15, the other ends ofwhich are pivotally connected to the upper ends of vibrating levers 1617,the lower ends of which are secured to a rock; shaft 18, as indicatedin the drawings.

4 19 2O designate parallel bars arranged across the machine between thegripper-carriages and having their ends suitably secured to theframe-pieces of the carriages, as shown, and by these bars the grippersare carried.

The grippers comprise a relatively rigid jaw and a movable or pivotedjaw. The rigid jaws 21 are formed with duplicate vertical ears 22 attheir inner ends and a sleeve 23, which.

ears have apertures through them to take in the supporting-bars 19 20,as shown, and are secured in any desired position by means of set-screws24 through the forward sleeve 23. The rigid jaw, as shown, consists of aplate mounted as stated and formed at a proper point with a verticalear24, having a threaded aperture, and at its outer end portion issecured a bracket 25, having a longitudinal slot 26, through which aclamping-screw 27 passes to adjustably secure the bracket to the plate.At the front end the bracket is forked, the limbs of the fork beinginclined upward, so as to engage the edge of the sheet and directdownward. At the inner end of the bracket 25 is a vertical ear 28,having a threaded aperture in alinement with the threaded aperture inthe car 24, and in these apertures is an adjusting-screw 29, whereby thebracket may be adjusted as desired.

Between the ears at the inner end of the rigid jaw and on the bar 19 ismounted the movable jaw of the grippers, secured to the bar 19 by aset-screw 30, so as to be oscillated by the bar which constitutes arock-shaftfor the grippers. The movable jaw consists of a rear member31, formed with a hub mounted on the bar 19, as stated, and an outermember 32, jointed to the rear member and curved downward at its freeend, as at 33, to engage on the end of the plate between the fork of thebracket, as seen in the drawings. The part 32 is held yieldinglyadjustable by means of a screw 34, let through ears adjacent to thejoint, and a spring 35 on the body of the screw between the ears.

On a rock-shaft 36, mounted at the inner end of the machine and actuatedby any suitable connection, is an arm 37, pivotally connected to a bar38, carried on pivoted links 39, and at the determined point on the baris adjustably mounted a trip-piece 40, which when raised engages atrip-arm 41, rigid on the bar 19, and thereby rocks the bar, and that inturn lifts the movable jaws from their engagement with the paper.

On the bar 19 is rigidly mounted a trip-arm 42, having its upper endportion turned into an inclined horizontal position, so that when thecarriage is moved forward, as indicated in the drawings, the arm willpass under a trip 43 and lift the movable jaws to receive the paper. Thearm 42 is connected to a contractile spring 44, which at all timestendsto turn the shaft 19 on its axis to keep the movable jaws of thegrippers in contact with the rigid jaws.

On the rock-shaft 36 is mounted a bar 45,

formed with diverging arms at its free end, whereon is carried acreasing knife 46, formed or provided with downward-extending pins 47which when the knife is at its lower limit of movement pass through thepaper and hold it from lateral displacement.

The functions of the respective parts and elements have beenmentioned-in connection with the description; but the. operation may bestated as follows: First, it is apparent the respective elements must berelatively arranged and timedto perform their function at the time andplace prescribed. Now the mechanism being in position indicated in Fig.3, the paper is fed to the grippers, which stand open ready to grip it.Then as the backward movement of the grippers commences they engage thepaper and carry it with them until they reach the position indicated inFig. 4, where the trip-lug rises and opens the grippers. The knife nowin sequence descends, carrying the paper into the bite of the rollers,and the fold is completed.

It will thus be perceived that the machine accomplishes the fold withoutthe aid or presence of tapes usually employed.

Having thus described my invention, what I claim is- 1. In afolding-machine, the combination of reciprocable carriages, a cross-barand a rockbar connecting the carriages, a relatively fixed grippermember carried by the two bars, a swinging gripper member rigidlymounted upon the rock-bar, reverse trip-arms carried by the rook-bar,and opposite trip members in the paths of the respective trip-arms tooscillate the rock-bar thereby separating the gripper members.

2. In a folding-machine, the combination with a frame, of oppositetracks, carriages traveling upon the tracks, a rigid cross-bar and arock bar connecting the carriages, means for reciprocating thecarriages, a lower rigid gripper member carried by the two bars, anupper swinging gripper member rigidly carried by the rock-bar, reversetrip-arms carried by the rock-bar, a front trip in the forward path ofone trip-arm, a rear trip adjustable longitudinally of the path of theother trip-arm, and means for automatically bringing the rear trip intothe path of said other trip-arm.

3. Ina folding-machine, the combination of a reciprocable gripper havinga pivotal gripper member, reverse trip-arms for the pivotal member, afront trip in the forward path of one trip-arm, a rear trip adjustablelongitudinally of the path of the other arm, and means for bringing therear trip into the path of the rearward travel of said other trip-arm.

4. In a folding-machine, the combination of a reciprocable gripperhaving a pivotal gripper member, reverse trip-arms for the pivotalgripper member, a front trip in the forward path of one of thetrip-arms, a laterally-movreaching forward centrally over the machine lable bar substantially parallel with the path of the other trip-arm, arear trip member adjustable longitudinally upon the bar, and

means for automatically moving the bar lat erally to bring the tripthereon into the path 5 of the said. other trip-arm.

5. A gripper for folding-machines, embodying a member having a slottedforked bracket adjustable thereon, an adjustable fastening piercing theslot and engaging the gripper IO member, an adjusting-screw carried bythe member and engaging the bracket, and a pivotal memberhaving its freeend Working between. the arms of the forked bracket.

In testimony whereof I affix my signature in presence of two Witnesses.

. GEO. W. SCHOOK.

W'itnesses:

GEORGE OLTSCH,

MAGGIE OLTSOH.

